material f.3 d & t shun lee catholic secondary school
Post on 24-Dec-2015
216 Views
Preview:
TRANSCRIPT
Material
F.3 D & TShun Lee Catholic Secondary School
Choose an appropriate material
Cost Availability Properties Durability Maintenance
Steel Steel is strong and quite cheap. The main problem is it rusts. We can paint the steel or use stainless steel to
solve the problem.
Plastics It is easily moulded. It is water resistant. It does not rust. It has large range of properties. It is very strong for its weight. It is very cheap.
Wood It is heavy. It is quite cheap. It is quite strong.
Concrete It is water resistant. It can be moulded. It does not rust.
Concrete - moulding
top related